Transmitting function of the concrete XPS electron analyzer (admixture of asymmetric contribution) 2. While performing an XPS analysis, in most common cases one can realize, that the recorded XPS spectra are exhibiting clear deviations from the idealized symmetric shapes and this may happen due to the following effects: Material-under-study reasons: Effects of intrinsic origin 1.Ĭore-hole life-time broadening (Coster-Kronig processes, 2) XPS Final-states effects 1.ĭifferential surface charging of the sample under XPS-study. In the case of metallike samples or metal-doped materials under XPS study, it has been shown, that asymmetric spectra profiles have to be expected 1. Introduction A range of physically possible line-shapes in core-level XPS is relatively wide, and in most cases, unfortunately, simple Gaussian or Lorentzian functions or even their combinations are very rarely adequate to describe particular situation. Zatsepin) Scientific edition made by Prof. The meaning attributed to custom backgrounds should be viewed in the.Ī.F. full width at half maximum, asymmetry factor, GL ratio, were. Investigation of multiplet splitting of Fe 2p XPS spectra and bonding in. Photoelectron spectra of hydrated electron clusters: Fitting line shapes.
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